To estimate a maximum purchase price for the coin in question, we can analyze the provided data, including auction history and previous hammer prices.

1. Current Condition: The coin has a condition rating of 75 (VF), indicating that it is in fairly good shape, but not the best possible condition.

2. Price History:
- The average hammer price for this coin in the past is 96.18 euros.
- Previous hammer prices for coins with similar conditions (around 75) range from 50 to 110 euros, with some exceptional cases reaching higher prices in better conditions.

3. Recent Trends:
- In the most recent auctions, hammer prices have been in the range of 60 to 110 euros for similar conditions.
- The last auction for this coin had a starting price of 60 euros, suggesting that the market is willing to pay at least that amount.

4. Estimation:
- Given that the average hammer price is 96.18 euros and considering that the condition is 75, a reasonable maximum purchase price could be in the range of 100 to 120 euros, taking into account that buyers may be willing to pay a bit more for a coin in good condition.

Conclusion: An estimated maximum purchase price for this coin could be 120 euros. This is based on the analysis of previous prices, the current condition, and market trends.